Benjamin



(N0 Mo del.)

' B. O. VANDUZEN.

PUMP.

Patented Deo.12 1882.

N. PETERS. PluolwLithagraphlr. Washingtom D, C

. UNITED STATES PATENT OFFICE.

BENJAMIN U. VANDU ZEN, OF CINCINNATI, OHIO.

PUMP.

- SPECIFICATION forming part of Letters Patent No. 268,841, dated December 12, 1882.

' Application filed September 5,1881. (No model.)

To all whom it may concern:

Be it known that I, BENJAMIN O. VANDU- ZEN, of the city of Cincinnati, county of Hamilton, and State of Ohio, have invented certain new and useful lmprovements in Pumps, of which the following is a specification.

My invention relates to that class of pumps commonly known as cistern or well pumps; and it consists in a certain novel con- .struction and combination of the various component parts, whereby greater efficiency is acquired and at the same time greater simplicity in construction.

In the accompanying drawings, Figure 1 is a sectional elevation of my invention. Fig. 2 is a sectional elevation taken at right angles to that shown in Fig. 1. Fig. 3 is a sectional elevation of the preferred form of piston. Fig. 4. is a top view of the base or supporting-band. Fig. 5 is an elevation of the lower plunger as shown in Fig. 3.

Similar parts are similarly designated by the letters of reference used herein.

The body of the pump is composed of the stock A and ppmping-chamber B. The spout 0 and handle-bracket C are made in one casting, and form the top (3 of the pump, the stock A, which is made of any preferred kind of tubing or pipe, being screwed into this casting and also into the projection B of the pump: ing-chamberB. Ordinarily the pumping-chamher is located about four feet below the wellcurb; but in very deep wells it must be placed lower, as the littin g capacity of a suction-valve is only about twenty-five or thirty feet, necessitating the location of the pumping-chamber within this distance from the water. In order to permit of the proper location of the pumping-chamber B in deep wells, the stockA may be lengthened by additional pipescrewedinto its lower end or fastened to it by means of the coupling A.

'The handle D is made of the usual shape and size, being pivoted at D to the bracket 0 by means of the bolt d, and at D to the pump-rodE by means ofthe nut E-. Thepump rod E terminates at the coupling E by which it is connected to the rod E The two plungers F and G are situated one at either end of the rod E and at a distance apart equal to the stroke of the pump, the

upper plunger, F, being made smaller to flit the smaller diameter of the upper part, B of the pumping-chamber B, and the lower plunpoint where the passage B leads into the stock A. The upper plunger, F, is composed of the leather cupf, which. is slid over the rod E until it comes up snug against the lower face of thecouplingE The washerf is then slid over the same rod until it comes into place against the lower side of the cup f. The pipe or tubing E is out to the length required to keep the plungers at the proper distance apart. This pipe E is next placed in position surrounding the rod E and fitting snugly against the under side of the washerf. The lower end of this pipe E rests snugly on the top of the washer g, which in turn fits against the upper side of the leather cup 9 of the valve G, this cup being supported by casting 9?. The rod E passes entirely through the plunger F, pipe E and plunger G, projecting slightly beyond the casting g and having screwed onto this projecting end the nut 9 This nut g being screwed up tight against the casting g the pressure is transmitted by means of the cup g and washerg to the pipe E which in turn presses the washer f and cup f firmly into place against the under face of the coupling E The not g thus holds together the entire plunger, and by simply removing it at any time any part may be cleaned, repaired, or replaced. In the plunger G the cup is made to snugly fit the bore of the lower part, B of the pumping-chatn her. The sides of this cup 9 extend upward a short distance, as shown, providing a flat bearing-surface against the interim of the cylinder B which forms a valve, dispensing with the necessity of an extra valve in i the plunger. The casting 9 made of a flaring shape, has its upper periphery of a size slightly smaller than the bore of the part B and has any preferred number of oblong notches 9 cut into its upper periphery, as will be more fully seen by reference to Fig. 5. p 0 p A suction or supply pipe, H, is screwed into the bottom B of the pumping-chamber. An ordinary flap-valve, b, covers the suction or supply opening b of the pumping-chamber. 1n

casting G, as shown, and extends downwardly a sufficient distance to be below the freezing- I on the timber or covering K, the casting L is wardly the entire piston, the flap-valve I) be- .ing from the orifice L outwardly to the pethe interior of the stock A is the dischargepipe proper, as designated by J, Fig. 2. The top of this supply-pipe J is screwed into the line in winter. By this means the pipe J, through which water is discharged from the pump, is entirely protected from the atmosphere, not permitting water to freeze in the pump in the winter or become heated in the summer.

In order to hold the pump in proper position used. This casting L is made preferably of the shape shown in Fig. 4, having an annular orifice, L, surrounded by the vertical flange Z, the orifice L being made of sufficient size to al low the stock A to be passed snugly through the same. At that portion which is at the side of the pump opposite to the pump-rod the casting L has a small longitudinal slot, l, extendriphery of the casting'and continued beyond same by the projection of the lips l of the flange Z. This casting L, having been passed over the stock A, is moved to the desired point and the bolt l passed through the hole in the lips I and tightened up until the flange l hugs the stock A so tightly that any motion of the same through the casting L is impossible, sufficient space being always left between the inner faces of the lips l to allow for future tightening, if necessary. A longitudinal slot, L is also provided in the casting L, properly situated and of the proper size and shape to allow the pump-rod E to work freely through the same. As a means of securing; the casting to such frame-work as may be provided, aflange, L is provided, the latter being provided with any desired number of holes l for the insertion of the proper screws or bolts.

In operating the pump, the handle D being raised, the pump-rod E descends, forcingdowning closed of its own weight. The handle is now broughtdown, and the pump-rod, ascending, brings the piston with it, creating by means of the lower plunger, G, a strong suclion, which causes the flap-valve b to lift, admitting water from below to the part B ot'the pumping-chamber, filling this part B with water. The piston is now forced down by elevating the handle D, and the valve 1) closes, preventing the escape of the water into the pipe H, and thepressure of this water as the piston descends causes the cup to collapse and the water passes through the notches g. The

piston is now elevated, and the pressure of the water above the pluugerG causes the periphcry of the cup 9 to fit snugly against the interior of the cylinder B and the piston conti nuing to ascend, the water above the plunger G is forced partly into upper portion, B and artly into the stock A, as the upper portion, B of the pumping-chamber is smaller than the lower. portion, B and will not therefore contain all of the water which was contained in thelower portion. The piston is now again forced down, the valve 1) closing, as before, and the plunger F forces the water that was contained in the upper part, B into the stock A at the same time that the water in the lower part, B passes through the plunger G, as before described. It will thus be seen that both the upward and downward movement of the piston forces water into the stock A, thus making a double-acting pump. The pipe J, being of considerably smaller diameter than the pipe A,leaves a considerable space between its outer surface and the inner surface of the pipe A, forming an air-chamber, which, being constantly filled with confined air, by its resistance causes the water to pass in a uniform stream into the pipe J, and thence outwardly through the outlet 0. Theair contained between the two pipes A and J acts also as a non-conductor, protecting the pipe J from atmospheric changes both in winter and summer, as before stated.

What I claim as new and of my invention, and desire to secure by Letters Patent, is-- 1. In combination with a pump-stock constructed substantially as described, a supporting-plate, L, provided with opening L l, and a suitable clampingdevice for causing the pump-stock to be securely held in said opening, substantially as described.

2. The herein-described supporting-plate for pumps, consisting of the plate or flange L provided with openings L L the openings L being surrounded by the flange I, having the the cars l for the attachment of a suitable clamping device, substantially as and for the purposes specified.

3. A piston-plunger for pumps, consisting of the flexible cup g, secured between the washers or blocks g 9 the periphery of the latter being provided with notches 9 substantially as and for the purposes specified.

BENJAMIN G. VANDUZEN. 

